CN102216607B - Rotor blade comprising a flange tapering off in the longitudinal direction, method for producing the rotor blade, and laying assistance device for the positioning strips of the flange - Google Patents
Rotor blade comprising a flange tapering off in the longitudinal direction, method for producing the rotor blade, and laying assistance device for the positioning strips of the flange Download PDFInfo
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- CN102216607B CN102216607B CN200980137532.7A CN200980137532A CN102216607B CN 102216607 B CN102216607 B CN 102216607B CN 200980137532 A CN200980137532 A CN 200980137532A CN 102216607 B CN102216607 B CN 102216607B
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- rotor blade
- positioning strip
- longitudinal direction
- band
- width
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 claims description 28
- 240000007182 Ochroma pyramidale Species 0.000 claims description 20
- 241000196324 Embryophyta Species 0.000 claims description 7
- 238000005452 bending Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 2
- 238000000465 moulding Methods 0.000 description 8
- 238000010030 laminating Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 235000019994 cava Nutrition 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor
- F03D1/06—Rotors
- F03D1/065—Rotors characterised by their construction elements
- F03D1/0675—Rotors characterised by their construction elements of the blades
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/302—Details of the edges of fibre composites, e.g. edge finishing or means to avoid delamination
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/08—Blades for rotors, stators, fans, turbines or the like, e.g. screw propellers
- B29L2031/082—Blades, e.g. for helicopters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2250/00—Geometry
- F05B2250/20—Geometry three-dimensional
- F05B2250/29—Geometry three-dimensional machined; miscellaneous
- F05B2250/292—Geometry three-dimensional machined; miscellaneous tapered
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2280/00—Materials; Properties thereof
- F05B2280/60—Properties or characteristics given to material by treatment or manufacturing
- F05B2280/6003—Composites; e.g. fibre-reinforced
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2253/00—Other material characteristics; Treatment of material
- F05C2253/04—Composite, e.g. fibre-reinforced
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49316—Impeller making
- Y10T29/49336—Blade making
Abstract
The invention relates to a rotor blade for a wind energy installation, comprising at least one flange extending longitudinally from the base of a rotor blade to the tip of the rotor blade, the flange tapering off in the longitudinal direction. The invention also relates to a method for producing a rotor blade, wherein at least one flange tapering off in the longitudinal direction is applied to the inner wall of a rotor blade, and a laying assistance device for the positioning strips of the flange.
Description
Technical field
The present invention relates to a kind of a kind of rotor blade and method for the manufacture of this rotor blade with at least one band extending from rotor blade root to rotator tip in a longitudinal direction for wind energy plant.The invention still further relates to a kind of band for this rotor blade positioning strip lay auxiliary device.
Background technique
The known rotor blade with contact pin always in prior art.The length of the rotor blade of modern wind energy plant is 60 meters or longer.At this, the diameter in rotor blade, especially rotor blade root section can reach several meters.Problem be how to make so long and substantially very high rotor blade there is enough dent resistances (dent resistance).For improving the dent resistance of rotor blade, band is arranged on to inside along the rotor blade inwall of upper casing and lower casing in a longitudinal direction.In addition, to be installed as in a longitudinal direction the preferred opposed band from rotor blade inner chamber vertically outstanding in contact pin.Band and contact pin itself have again the danger of depression.
Conventionally band is formed with laminating method manufacture by the positioning strip of constant width.At this, band can progressively stop and attenuation gradually by positioning strip towards rotator tip from rotor blade root.Large at rotor blade root place tape thickness thus, there is high dent resistance, tape thickness continues to reduce towards rotator tip, thus its dent resistance also reduces.
In order to realize high efficiency, band is constructed widelyr.But this can cause band cannot being installed in outmost rotator tip on the one hand, needs on the other hand lot of materials to produce band.
Summary of the invention
Task of the present invention is to provide a kind of rotor blade, and it has enough dent resistances and can expend to manufacture with less material.The task of the inventive method aspect is to provide a kind of manufacture method for this class rotor blade.Task of the present invention be also to provide a kind of for positioning strip lay auxiliary device.
The rotor blade of carrying by beginning about the task of rotor blade solves, and it has at least one band, and according to the present invention, the width of this band reduces along the longitudinal direction.Because width according to the present invention reduces, so this band can stretch in rotator tip and to manufacture required material for it also less.
This band has improved the dent resistance of rotor blade.In preferred rotor blade inner chamber, opposed each band utilizes at least one preferred vertical and protrudes from the contact pin of these two bands to be fixedly connected with.
Longitudinal direction refers to the direction from rotor blade root to rotator tip at this.As broad as long between the longitudinal direction of this tyre, rotor blade half shell or rotor blade.At this, they should be regarded as to coincidence.
The width of band refer to below band transverse to longitudinal direction, be preferably perpendicular to the length of longitudinal direction.Horizontal direction equally also refers to transverse to longitudinal direction, is preferably perpendicular to the direction of longitudinal direction.
According to the present invention, rotor blade especially has the danger of depression in rotor blade root region.Therefore, for improving dent resistance, need to wide especially band be set along inner rotor blade section." outward " and " interior " this and below refer to rotor blade section or corresponding described member with respect to wind energy plant the position in installment state.That is to say, external rotor blade segments arranges in rotator tip region, and internal rotor blade segments is arranged in the region of rotor blade root.
Can consider in principle bandwidth is reduced towards rotator tip in a different manner.Preferred bandwidth degree stepwise reduces.The horizontal ladder that ladder preferably extends in a lateral direction.These horizontal ladders can be distributed in longer rotor blade section in other words in tape section in a longitudinal direction.The length of this section can be at least half of rotor blade length.But horizontal ladder also can be distributed in 70%, 80% or of rotor blade length more and go up.
Described at least one band is preferably made with laminating method by the positioning strip superposeing.When manufacturing this band, from the multiple positioning strips of rotor blade root stack.The structure of each positioning strip can be configured to differ from one another.Positioning strip
can be band of narrow fabric or glass fiber tape, it has directed in a longitudinal direction glass fibre or analog.
The length of positioning strip can be different in a longitudinal direction, and the each positioning strip starting from thus in the identical cross-section at rotor blade root place terminates in different sections on rotor blade longitudinal direction.In corresponding section, tape thickness stepwise reduces the thickness of the positioning strip stopping in this section.The tape thickness of this band can reduce along its longitudinal direction in multiple ladders.Preferably all positioning strips start from the identical cross-section on rotor blade root.According to the present invention, the width of positioning strip is narrower, and it is just longer from rotor blade root stretching out in a longitudinal direction.Multiple different positioning strips also can be from leaving that the different distance of rotor blade root starts and extending in a longitudinal direction therefrom in principle.
Preferably the outside positioning strip of band is shorter than the inner side positioning strip of band." outside " and " inner side " here and next refers to along the direction of rotor blade cross section." outside " refers to the direction towards rotor blade wall, and " inner side " refers to the direction towards rotor blade inner chamber.
Therefore, first outside positioning strip stops from rotor blade root, and inner side positioning strip is crossed the horizontal ladder being formed by outside positioning strip and extended towards rotator tip direction.Laterally ladder preferably extends point-blank in a lateral direction.
Advantageously, in rotor blade, on cavity direction, each positioning strip arranging in outside positioning strip inner side is longer than this outside positioning strip.In this mode of execution of the present invention, outside positioning strip stops and all form horizontal ladder at every turn when stopping towards rotator tip continuously, and inner side positioning strip is crossed this horizontal ladder.
These mode of executions of the present invention also can make to be with from rotor blade root towards rotator tip attenuation.
Preferred bandwidth degree reduces in a longitudinal direction continuously.To this, can expect making each stack positioning strip taper towards rotator tip, attenuate, thereby whole band is attenuated towards rotator tip.
In one of the present invention preferably further expands, the width of positioning strip is different.At this, each single positioning strip or all width of positioning strip remain unchanged on its longitudinal length separately.Preferably first the widest positioning strip stops towards rotator tip from rotor blade root, and narrower positioning strip stops in a longitudinal direction on the farther position of rotor blade.This structure of positioning strip narrows band generally in a longitudinal direction.Bandwidth stepwise reduces, and width stepwise reduces in same cross section (extending in this cross section with the affiliated horizontal ladder being formed by the termination of positioning strip).
Advantageously, preferably all positioning strips have respectively constant width on its whole longitudinal extension.But also can consider to change the width of positioning strip itself, especially make the width of this positioning strip reduce in a longitudinal direction.But preferably by the positioning strip of stacked different length and width, reduce the width of band, and each single positioning strip has constant width along its longitudinal extension.
Preferably outside positioning strip is wider than the inner side positioning strip of band.In the particularly preferred mode of execution of one of the present invention, each positioning strip adjacent inside the positioning strip of outside is narrower than outside positioning strip.Band has pyramidal cross section in this embodiment.
Due to positioning strip width difference, so form in a longitudinal direction longitudinal ladder between each positioning strip.The ladder height of these longitudinal ladders equals the thickness of narrower inner side positioning strip.For smooth or longitudinal ladder of flattening, can in longitudinal ladder, arrange or add the terminal member of extending in a longitudinal direction of wedge shape.Terminal member can be western India cork wood bar or the western India cork wood piece of wedge shape at this, and they are installed to from the side on narrower inner side positioning strip and paste or be laminated on the wider positioning strip in outside.
Can carry out smooth to each longitudinal ladder.By the overlay film of the positioning strip to including the wedge shape of longitudinal extension, form the master tape with flat and straight as far as possible inner plane, straight walking surface when this inner plane can be used as maintenance work.Width to this each positioning strip and thickness will with the curvature adaptation of rotor blade cross section, thereby all positioning strips roughly end in walking surface plane on side.
In another kind of preferred embodiment of the present invention, laterally ladder is smooth by the terminal member that is similarly wedge shape of horizontal expansion.
Laterally the problem of ladder is especially, inner side positioning strip only could be directed on adjacent outside positioning strip by horizontal ladder in the situation that forming cavity.The danger that band caves in the section of horizontal ladder is increased.According to the present invention, by the terminal member of horizontal expansion, fill up horizontal ladder cavity before.
Preferred orientation bar stops in a lateral direction with a straight edge in a longitudinal direction.Therefore this edge forms straight horizontal ladder.According to the present invention, laterally ladder preferably the terminal member of the dovetail by horizontal expansion come smooth or flatten.The wedge of horizontal expansion is preferably sharper than the wedge of longitudinal extension.The wedge of horizontal expansion coordinates in the horizontal ladder under inserting exactly.The outside positioning strip of the wedge of horizontal expansion and termination adaptive and by the inner plane of positioning strip with light grade very, the inner side in other words on the inwall of rotor blade half shell of preferably transferring to continuously adjacent outside positioning strip in the slope in several years.
By so carrying out smooth horizontal ladder, can guide adjacent inner side positioning strip, and can not make its danger that forms depression increase.
Preferably the wedge termination part of horizontal expansion is made by western India cork wood equally.Western India cork wood is easy to processing and especially can in laminated process, be attached to firmly in laminated layer.
But the terminal member of longitudinal and/or horizontal expansion can have extremely different shapes, and especially wedge-shaped cross-section can change at the corresponding longitudinal extension along terminal member aspect lateral length and/or angle.
In conjunction with above-mentioned mode of execution (first outside positioning strip stops in a longitudinal direction), band can become narrower and thinner in a longitudinal direction gradually.
Band can refer to that master tape also can refer to subband.The present invention can be used for master tape and the subband of same rotor blade.
The task of method this by the band with the width reducing is in a longitudinal direction installed on rotor blade inwall and is solved.
The method also can be used for master tape and/or subband.
Preferably the positioning strip with different in width and length is carried out stacked.Select to have in this wise the positioning strip of different length, make positioning strip extend in a longitudinal direction longlyer from rotor blade root, it is average, preferably constant width is just selected littlely.Layer order can be selected arbitrarily, so that the width of band under reducing.
Advantageously, first in outside, short and wide positioning strip is installed on the inwall of rotor blade half shell and on this positioning strip and in inner side, lays narrower and longer positioning strip, until complete whole layer structures.Then by positioning strip overlay film.
Preferably successively short and wide positioning strip is arranged on outside, preferred rotor blade inwall, and will at the adjacent longer narrower positioning strip in inner side, be arranged on the positioning strip of outside.But may also be considered that, the positioning strip of stack is not necessarily just longer and narrower in inner side, inner side positioning strip is also may be than adjacent outside positioning strip short or inner side positioning strip is wider than adjacent outside positioning strip.But the widest positioning strip should stop in a longitudinal direction at first and inferior wide positioning strip should be served as second termination, etc., thereby endways only remaining one or several there is the positioning strip of narrow width and be arranged in rotator tip.Can consider in addition, multiple positioning strips have identical length and/or width and for the manufacture of rotor blade.
One of the present invention preferred embodiment in, the end of the positioning strip stopping in a longitudinal direction forms horizontal ladder, laterally on ladder, wedge termination part is being installed and can on the positioning strip stopping and wedge termination part, be being placed adjacent positioning strip in inner side.
One of the present invention preferred embodiment in, wide positioning strip (preferably on the straight line perpendicular to longitudinal direction) stops, and the terminal member of moulding horizontal expansion on the ladder being formed by the termination of positioning strip, this terminal member is directed to positioning strip plane on the adjacent positioning strip in outside continuously.In back to back laminated process, outside positioning strip and terminal member are laminated and be attached to firmly thus in belt.
Advantageously, preferably by smooth via the link extending in a longitudinal direction at the longitudinal ladder forming by the different in width of each single positioning strip in a longitudinal direction with side.This side direction link can extend in the whole length that is arranged on the positioning strip on equal height.
The side direction link extending in a longitudinal direction also can be together with positioning strip in laminated process by overlay film.
The cross section of the link extending in the horizontal and vertical directions can be configured to wedge shape.Link can have western India cork wood or wholely by western India cork wood, be made.At this, preferably select in this wise the gradient of side direction link and the width of positioning strip, make to be formed in the inner chamber of rotor blade by the band of overlay film flat as far as possible and straight face.
Master tape and/or the subband by the present invention, manufactured are no longer wide in all locational cross sections, are with in the cross section of outer end than narrow in the cross section at zone line.Saved material on the one hand thus, and however still kept sufficiently high band dent resistance, because the load of band in lateral edge is less than the load in zone line anyway.
The task of the third aspect solves by the auxiliary device that lays of the positioning strip of the band of rotor blade half shell of the rotor blade for wind energy plant, it has for the stop of positioning strip and has fixing device, constant with respect to positioning strip holding position to be laid during installation by this fixing device stop, this lays auxiliary device and also has the height-adjusting device and the width adjusting device that with respect to rotor blade, regulate stop.
Lay auxiliary device and comprise stop, this stop is preferably completely along the rotor blade longitudinal length extension of rotor blade half shell in other words.Preferably manufacture in this wise rotor blade, make first in mfg. moulding die, to construct two rotor blade half shells.Band can be laminated in rotor blade half shell.But also can expect band-contact pin component layer to be incorporated in rotor blade half shell.Because band of the present invention can have the positioning strip of multiple different in width, so need to lay in this wise in a longitudinal direction these positioning strips, make their the relative dislocation of side direction keep in a longitudinal direction constant.Lay the stop of auxiliary device for this reason and can and treat that with respect to rotor blade half shell the positioning strip of installing is arranged to invariant position in rotor blade half shell, and affiliated positioning strip flushes and lays along stop with its side.
For also can be narrower and/or wider and be arranged on the positioning strip of inside or more lateral for other is installed by laying auxiliary device, preferably can regulate the height of backstop or regulate the width in a lateral direction of backstop with respect to rotor blade inwall.Therefore, backstop can be used for being arranged on the positioning strip of inside by improving with respect to the height of rotor blade inwall, and regulates in a lateral direction backstop by width adjusting device, and backstop can be for narrow wider positioning strip in other words.
Lay auxiliary device and also can there is shorter in a longitudinal direction backstop.Lay like that auxiliary device and preferably there is additional shifter in a longitudinal direction.
In the particularly preferred embodiment of the one of laying auxiliary device, fixing device is configured to camber member, and this camber member is fixedly connected with backstop on the one hand, is connected swingably on the other hand with the mfg. moulding die of rotor blade half shell.For example first can in laminated process, manufacture thus rotor blade half shell, then by camber member by backstop swing in rotor blade half shell and in following step by lay auxiliary device by the positioning strip lay of master tape and/or subband to the inwall of rotor blade half shell, then carry out overlay film.
Advantageously, lay auxiliary device and have leg, the backstop swinging in rotor blade half shell can be supported on the inwall of rotor blade half shell by this leg.Advantageously, fixing device has the extracting apparatus for described at least one leg.
Accompanying drawing explanation
By the embodiment in six accompanying drawings, the present invention is described.Accompanying drawing is as follows:
The conventional rotors leaf cross-section of Fig. 1 the first mode of execution;
The conventional rotors leaf cross-section of Fig. 2 the second mode of execution;
The cross section of Fig. 3 rotor blade of the present invention;
The plan view of half shell of the below of Fig. 4 rotor blade of the present invention;
The perspective view of ladder in Fig. 5 Fig. 4;
Fig. 6 auxiliary device that lays with adjustable backstop of the present invention.
Embodiment
Accompanying drawing has shown the present invention in the mode of signal.It is contemplated that numerous embodiments.Accompanying drawing was not both drawn also not drawn on scale by size.
The cross section of the conventional rotors blade 1 shown in Fig. 1 demonstrates substantially hollow rotor blade inner chamber, and this rotor blade inner chamber consists of the joint of rotor blade half shell 2 of below and rotor blade half shell 3 of top.In the manufacture method of rotor blade 1, first by laminating method, manufacture respectively rotor blade half shell 2,3.To this, be the each mfg. moulding die that itself is set in two rotor blades, half shell 2,3, rotor blade half shell 2,3 under being preferably shaped by the stacked of positioning strip with to stacked positioning strip overlay film (ü berlaminieren) in mfg. moulding die.Especially can use vacuum impregnation as laminating method.
The length of the rotor blade 1 of modern wind energy plant can reach 60 meters or more.Correspondingly large too for the manufacture of the mfg. moulding die of rotor blade half shell 2,3.Each rotor blade half shell 2,3 can be by laminated manufacture all-in-one-piece, and its mode is for being that positioning strip is layed in mfg. moulding die in whole rotor blade length.But also can expect first manufacturing some sections of rotor blade half shell 2,3 and and then by laminated technology, these sections being coupled together.
During manufacture process, will put into rotor blade half shell 2,3 and on the longitudinal direction L of rotor blade half shell 2,3, be laminated on the inwall of each rotor blade half shell 2,3 with 4,5.The master tape 4 of below and the master tape 5 of top preferably extend point-blank on the longitudinal direction L of affiliated rotor blade half shell 2,3.Shown in Fig. 1, be with 4,5 to be so-called master tape 4,5, it is preferably arranged in the region of protruding most of rotor blade cross section.These two master tapes 4,5 in rotor blade inner chamber opposite and by a contact pin 7 that vertically protrudes from respectively two master tapes 4,5 each other load fix and connect constantly.Contact pin 7 shown in Fig. 1 is double-T shaped contact pin.
Master tape shown in Fig. 1, the master tape 4 of below and the master tape 5 of top that are correspondingly laminated in rotor blade half shell 2 and rotor blade half shell 3 of top of below have identical bandwidth B at it on the whole longitudinal extension on the longitudinal direction L at rotor blade 1.But tape thickness D (master tape below in Fig. 1 being 4 and above the vertical dimension of master tape 5) but reduces towards the direction of rotator tip 12 from rotor blade root 11 on the longitudinal direction L of rotor blade 1.Tape thickness D not necessarily reduces continuously on whole longitudinal length, but the place that thickens of master tape 4,5 also can be set in rotor blade section.Bandwidth D reducing to can be understood as fifty-fifty and reduce on the longitudinal direction L of rotor blade 1.
Conventionally master tape 4,5 is made by multiple positioning strips that superpose.Outermost positioning strip, be laid immediately on below rotor blade half shell 2 inwalls on positioning strip from the outward edge of rotor blade root 11, at longitudinal direction L, extend to rotator tip 12." interior " and " outward " are interpreted as that at this rotor blade section or member explain with respect to the position of the position that is installed to the rotor blade on wind energy plant.Therefore internal rotor blade segments refers to the rotor blade section adjacent with rotor blade root 11, and external rotor blade segments is adjacent with rotator tip 12.
Positioning strip starts little by little to stretch out from the positioning strip of inner side from rotor blade root 11." outside " and " inner side " is with respect to rotor blade inner chamber rotor blade outer wall in other words in addition.Two master tapes 4, the 5 positioning strip of inner side stretch out from rotor blade root 11s as the first positioning strip, and the second positioning strip stretches out fartherly as second, and outermost positioning strip almost enters in outmost rotator tip 12.Therefore, the thickness D of the master tape 4 of below and the master tape 5 of top reduces to rotator tip 12 from rotor blade root 11, and width B is along remaining unchanged with 4,5 longitudinal extension.
In order to make master tape 4,5 efficient especially, master tape 4,5 is constructed widely as much as possible.
In the cross section of the rotor blade 1 of the traditional mode of execution of the second, two master tapes 4,5 are by two U-shaped contact pin 16,17 invariant positions ground and connect constantly.In addition, all identical with manufacture method and the basic structure of contact pin 7,16,17 with 4,5 in Fig. 1 and Fig. 2.
For the master tape 4 of top traditional in Fig. 1 and the master tape 5 of below disadvantageously two master tapes 4,5 along constant this fact of width B of master tape 4,5.4,5 two master tapes of master tape 4,5 in Fig. 2 have the danger of depression especially in the centre of cross section.Master tape 4,5 outside in rotor blade section also thin especially and particularly between U-shaped contact pin 16,17 danger of master tape depression improve.
Fig. 3 shows the cross section of rotor blade 1 of the present invention.At this rotor blade 1, be shown as and will protrude manyly than the rotor blade in reality.The rotor blade cross section that the cross section of rotor blade 1 of the present invention shows corresponding to Fig. 1 and 2 substantially.In addition, as is known in the art, the master tape 4,5 of above and below is laminated on rotor blade half shell 2,3 of above and below.At this each master tape 4,5, by the positioning strip 20,21,22,26,27,28 superposeing, formed.But the width B difference of these positioning strips 20,21,22,26,27,28, they are in the size difference in a lateral direction of rotor blade 1.The positioning strip 20,26 of the above and below in outside is wider, and the positioning strip 22,28 of the above and below of inner side is narrower than the positioning strip of the above and below in outside 20,26.Fig. 3 show below with the master tape 4,5 of top, it is respectively by the positioning strip 20,21,22 of three belows or consist of the positioning strip 26,27,28 of three tops.The width of below and the positioning strip 20,21,22 or 26,27,28 of top from outside positioning strip 20,26 to the inside positioning strip 22,28 reduce continuously.But also can consider especially positioning strip to be in succession configured to wide.
The region in the middle of being positioned at along horizontal direction of two master tapes 4,5 is connected to each other by double-T shaped contact pin 7.
Between each positioning strip in succession, form ladder in a lateral direction.These ladders can be by the western India cork wood bar of the laterally disposed western India cork wood piece (not shown) being chamfered-preferably extend on longitudinal direction L-flatten or become smooth.Based on the projective structure of two rotor blades, half shell 2,3, can be by this way in the inner chamber of two rotor blades, half shell 2,3 wall of the inner side by two master tapes 4,5 form smooth, the easy face 31,32 of walking.In Fig. 3, with two dotted lines, represent this flat structures of the wall of inner side.
Fig. 4 shows the plan view of rotor blade half shell 2 of below in Fig. 3.Rotor blade half shell 3 of top is removed.In Fig. 4, the master tape 4 of below narrows at the longitudinal direction L of rotor blade half shell 2 from rotor blade root 11 to rotator tip 12 by two ladders 41,42.But can consider in principle, at longitudinal direction L, multiple ladders 41,42 are set, its quantity is than the quantity of the positioning strip of the master tape of below 4 20,21,22 few one.Fig. 4 shows the positioning strip 20 of inner side, its with below with the shortest and the widest in a lateral direction on longitudinal direction L compared with other positioning strip 21,22 of 4.
The positioning strip 21 of Fig. 4 in the middle of showing, it approximately extends to the centre of rotor blade half shell 2 on longitudinal direction L always, stop there and its width B at inner side and outermost positioning strip 20 in other words between 22.Outermost positioning strip 22 be below positioning strip 20,21,22 in the narrowest, it almost extends to rotator tip 12 completely from rotor blade root 11.Fig. 4 illustrates, ladder 41,42 also can form slopes by western India cork wood piece 51,52 on longitudinal direction L.
In the section of ladder 42, only there are outside two positioning strips 21,22.The positioning strip 22 of the termination of outer ladder 42 by the positioning strip 21 of middle below and inner side forms towards the decline of rotor blade inwall.The master tape 4 of below has three positioning strips 20,21,22.The positioning strip 20 in the outside of below is the widest and also the shortest in three positioning strips 20,21,22.The positioning strip 21 of the centre of below is narrower and long than the positioning strip in the outside of below 20, but wider and short than the positioning strip of the below of inner side 22.
The positioning strip 22 of inner side because middle positioning strip 21 ends at L in a longitudinal direction, is arranged in middle rotor blade section and forms ladder 42 by termination, so must directedly be crossed ladder 42.The positioning strip 22 of inner side has the danger of depression in the section of ladder 42.Fig. 5 illustrates, the positioning strip 22 of inner side drops on the inwall of rotor blade half shell 2 contacting completely in the case of there is no bending in the situation that and with the inner side surface of Gai Xi India cork wood wedge 52 by the western India cork wood wedge 52 of cutting sth. askew.Advantageously, western India cork wood wedge 52 protrudes from the width B of inner side positioning strip 22 and the also end of the positioning strip 21 in the middle of sealing and by lead the smoothly inwall of rotor blade half shell 2 of middle positioning strip 21 thus in side direction.
Fig. 6 shows the auxiliary device that lays with width and Height Adjustable stop 61.This lays auxiliary device 60 is a kind of instruments, by this instrument can by positioning strip 21,22 below the manufacture process of master tape 4 during on the rotor blade inwall of rotor blade half shell 2 below being installed to.Laying auxiliary device 60 both can also can be for all positioning strip of the master tape of the side of installing 5 for all positioning strips 20,21,22 of master tape 4 that below is installed.Can also be used for all positioning strips of possible subband.
Each single positioning strip 21,22 must have several meters be in a longitudinal direction straight and its with the staggering of edge of the positioning strip 21,22 of installing to keep identical.The auxiliary device schematic diagram that lays showing in Fig. 6 makes this mounting type become possibility.At this, stop 61 can extend and by camber member 62, be arranged on swingably on the edge or hinge of mfg. moulding die of rotor blade half shell 2 on the whole longitudinal length of rotor blade half shell 2.After rotor blade half shell 2 of making originally, laying auxiliary device 60 and can swing in rotor blade half shell 2 on camber member 2, until along the inwall that lays leg 63 that auxiliary device 60 arranges on longitudinal direction L and arrive rotor blade half shell 2.The height of stop 61 on rotor blade half shell 2 can regulate by height-adjusting device VH, and its mode can be for example that leg 63 is extracted with respect to the arm that is provided with stop 61.The width that lays the stop 61 of auxiliary device 60 can regulate by width adjusting device VB, to can consider the different bandwidth B of positioning strip 21,22.
List of numerals
1 rotor blade
Rotor blade half shell of 2 belows
Rotor blade half shell of 3 tops
The master tape of 4 belows
The master tape of 5 tops
7 contact pin
11 rotor blade roots
12 rotator tips
The contact pin of 16U type
The contact pin of 17U type
20 positioning strips
21 positioning strips
22 positioning strips
23 longitudinal ladders
The western India cork wood wedge of 24 longitudinal extensions
26 positioning strips
27 positioning strips
28 positioning strips
29 longitudinal ladders
The western India cork wood wedge of 30 longitudinal extensions
31 faces that can walk
32 faces that can walk
41 horizontal ladders
42 horizontal ladders
The western India cork wood wedge of 51 horizontal expansions
The western India cork wood wedge of 52 horizontal expansions
60 lay auxiliary device
61 stops
62 camber members
The width of B bandwidth, positioning strip layer
D tape thickness
The height-adjusting device of VH stop
The width adjusting device of VB stop
L longitudinal direction
Claims (26)
1. for the rotor blade of wind energy plant, this rotor blade comprises at least one band (4 that the longitudinal direction (L) along rotor blade extends, 5), it is characterized in that, at least one band (4 described in the cross section of rotor blade (1), 5) have stacked, the different multiple positioning strips (20 of (L) length difference and width along the longitudinal direction, 21, 22, 26, 27, 28), and positioning strip along the longitudinal direction (L) from rotor blade root (11), stretch out longlyer, its width is just narrower, and described at least one band (4, 5) outside positioning strip (20, 21, 26, 27) than band (4, 5) be arranged on this outside positioning strip (20, 21, 26, 27) positioning strip (21 of inner side, 22, 27, 28) short, and the width of described band (B) along the longitudinal direction (L) reduce, and described at least one band (4, 5) outside positioning strip (20, 21, 26, 27) positioning strip (21 that inner side arranges, 22, 27, 28) along the longitudinal direction (L) piecemeal or its substantially in the length of whole (L) along the longitudinal direction than band (4, 5) described outside positioning strip (20, 21, 26, 27) narrow.
2. rotor blade according to claim 1, is characterized in that, the width of described at least one band stepwise reduces in a longitudinal direction.
3. rotor blade according to claim 2, is characterized in that, the ladder (41,41) of horizontal expansion is distributed on such rotor blade section, and the length of this rotor blade section at least equals the half of the longitudinal extension of rotor blade (1).
4. according to the rotor blade described in claim 1,2 or 3, it is characterized in that, the width (B) of described at least one band (4,5) along the longitudinal direction (L) reduces continuously.
5. rotor blade according to claim 1, is characterized in that, each longer than this outside positioning strip (20,21,26,27) at the adjacent positioning strip (21,22,27,28) in an outside positioning strip (20,21,26,27) inner side.
6. rotor blade according to claim 1, is characterized in that, each positioning strip (21,22,27,28) adjacent to outside positioning strip (20,21,26,27) inner side is narrower than outside positioning strip (20,21,26,27).
7. rotor blade according to claim 1, it is characterized in that, the end of the horizontal expansion of the positioning strip (20,21,22,26,27,28) stopping in a longitudinal direction forms horizontal ladder (41,42), and terminal member that flatten, horizontal expansion (51,52) is set in described ladder.
8. rotor blade according to claim 7, is characterized in that, the terminal member (51,52) of described horizontal expansion is configured to wedge shape.
9. rotor blade according to claim 8, is characterized in that, wedge height equals the height of the positioning strip (20,21,22,26,27,28) stopping.
10. rotor blade according to claim 8 or claim 9, is characterized in that, wedge width equals the width (B) of the positioning strip (20,21,22,26,27,28) stopping.
11. rotor blades according to claim 8 or claim 9, is characterized in that, the terminal member (51,52) of described horizontal expansion has western India cork wood.
12. rotor blades according to claim 1, it is characterized in that, the end of extending in a longitudinal direction of the positioning strip (20,21,22,26,27,28) stopping in a lateral direction forms longitudinal ladder (23,29), and the terminal member (24,30) of flattening, (L) extends is along the longitudinal direction set in described ladder.
13. rotor blades according to claim 12, is characterized in that, the terminal member (24,30) that described (L) along the longitudinal direction extends is configured to wedge shape.
14. rotor blades according to claim 13, is characterized in that, wedge height equals the height of the positioning strip (20,21,22,26,27,28) stopping.
15. according to the rotor blade described in claim 13 or 14, it is characterized in that, wedge width equals the length of the positioning strip (20,21,22,26,27,28) of described termination.
16. according to claim 12 to the rotor blade one of 14 described, it is characterized in that, the terminal member (24,30) that described (L) along the longitudinal direction extends has western India cork wood.
17. according to the rotor blade one of the claims 1 to 3 Suo Shu, it is characterized in that, each wider and short than this inner side positioning strip (21,22,27,28) at the adjacent positioning strip (20,21,26,27) in inner side positioning strip (21,22,27,28) outside.
18. according to the rotor blade one of the claims 1 to 3 Suo Shu, it is characterized in that, described at least one band (4,5) is master tape.
19. for the manufacture of according to the method for the rotor blade one of the claims Suo Shu (1), wherein, by at least one band (4, 5) be installed on rotor blade inwall, the width (B) of described band along the longitudinal direction (L) reduces, it is characterized in that, to there is the positioning strip (20 of different in width (B), 21, 22, 26, 27, 28) stacked on top is to form band, and select to have like this positioning strip (20 of different length, 21, 22, 26, 27, 28), , positioning strip (20, 21, 22, 26, 27, 28) along the longitudinal direction (L) extends longer, this positioning strip (20 so, 21, 22, 26, 27, 28) just narrower.
20. methods according to claim 19, it is characterized in that, in use, can make laying auxiliary device (60) positioning strip (20,21,22,26,27,28) stacked on top of positioning strip (20,21,22,26,27,28) relative orientation.
21. according to the method described in claim 19 or 20, it is characterized in that, the end of the positioning strip (20,21,22,26,27,28) stopping in a longitudinal direction forms horizontal ladder (41,42), and the terminal member of horizontal expansion (51,52) is connected on described horizontal ladder and by described horizontal ladder and is flattened.
22. according to the method described in claim 19 or 20, it is characterized in that, the end of the positioning strip (20,21,22,26,27,28) stopping in a lateral direction forms longitudinal ladder (23,29), and the terminal member (29,20) that (L) extends by is along the longitudinal direction connected on described longitudinal ladder and is flattened.
23. methods according to claim 21, is characterized in that, western India cork wood wedge (23,29,51,52) is used as to terminal member.
24. methods according to claim 22, is characterized in that, western India cork wood wedge (23,29,51,52) is used as to terminal member.
25. methods according to claim 22, is characterized in that, give described positioning strip (20,21,22,26,27,28) together with described terminal member (23,29,51,52) at the interior overlay film that carries out.
26. according to the method described in claim 19 or 20, it is characterized in that, inner side positioning strip (21,22,27,28) is chosen to narrower than adjacent outside positioning strip (20,21,26,27) and so determines that described width reduces, make rotor blade inwall bending, to form the belt surface of inner side plane and straight substantially in the case of considering.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102008049016.4 | 2008-09-25 | ||
| DE102008049016A DE102008049016A1 (en) | 2008-09-25 | 2008-09-25 | Rotor blade with a belt with a decreasing width in the longitudinal direction, method for producing the rotor blade and laying aid for Gelegebänder the belt |
| PCT/DE2009/001271 WO2010034283A2 (en) | 2008-09-25 | 2009-09-11 | Rotor blade comprising a flange tapering off in the longitudinal direction, method for producing the rotor blade, and laying assistance device for the positioning strips of the flange |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102216607A CN102216607A (en) | 2011-10-12 |
| CN102216607B true CN102216607B (en) | 2014-04-30 |
Family
ID=41821071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200980137532.7A Active CN102216607B (en) | 2008-09-25 | 2009-09-11 | Rotor blade comprising a flange tapering off in the longitudinal direction, method for producing the rotor blade, and laying assistance device for the positioning strips of the flange |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US8888463B2 (en) |
| EP (1) | EP2329139B1 (en) |
| CN (1) | CN102216607B (en) |
| DE (1) | DE102008049016A1 (en) |
| DK (1) | DK2329139T3 (en) |
| ES (1) | ES2462755T3 (en) |
| WO (1) | WO2010034283A2 (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008012664A1 (en) | 2008-01-30 | 2009-08-06 | Repower Systems Ag | Wind turbine and a tower or tower segment and a door frame for it |
| DK2295235T3 (en) * | 2009-08-20 | 2013-07-29 | Siemens Ag | Fiber-reinforced plastic structure and method for making the fiber-reinforced plastic structure |
| CN102554817B (en) * | 2010-12-31 | 2015-07-15 | 上海艾郎风电科技发展有限公司 | Web plate locating device and blade web plate forming method |
| DE102011105228B3 (en) * | 2011-06-10 | 2012-09-20 | Nordex Energy Gmbh | Wind turbine component with an electrical cable embedded in a laminate |
| ES2382245B1 (en) * | 2012-01-31 | 2013-05-16 | Argolabe Ingenieria, S.L. | METHOD OF MANUFACTURING OF AEROGENERATOR SHOVEL |
| US10738756B2 (en) * | 2015-09-21 | 2020-08-11 | The Board Of Regents Of The University Of Texas System | Wave energy converter |
| CN108661853A (en) * | 2018-02-01 | 2018-10-16 | 上海电气风电集团有限公司 | A kind of wind electricity blade main beam structure and preparation method thereof |
| DE102018004540A1 (en) * | 2018-06-08 | 2019-12-12 | Senvion Gmbh | Method and device for producing a rotor blade for a wind energy plant and wind energy plant |
| DE102018006085A1 (en) * | 2018-08-02 | 2020-02-06 | Senvion Gmbh | Tapered pultrudate belt and a process for its manufacture |
| DE102018006165A1 (en) * | 2018-08-06 | 2020-02-06 | Senvion Gmbh | Rotor blade with bonds with continuously variable widths and a manufacturing process for a rotor blade |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4137007A (en) * | 1975-12-27 | 1979-01-30 | Walter Schonball | Rotor blade structure |
| WO2003008800A1 (en) * | 2001-07-19 | 2003-01-30 | Neg Micon A/S | Wind turbine blade |
| DE20320714U1 (en) * | 2002-05-02 | 2005-01-13 | Repower Systems Ag | Rotor blade for wind power generator has shell with internal stiffening straps having glass fiber and carbon fiber reinforced sections to increase stiffness |
| JP2007255366A (en) * | 2006-03-24 | 2007-10-04 | Mitsubishi Heavy Ind Ltd | Windmill blade |
| CN101892946A (en) * | 2010-07-22 | 2010-11-24 | 北京可汗之风科技有限公司 | Root structural design of wind driven generator blade |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10336461A1 (en) * | 2003-08-05 | 2005-03-03 | Aloys Wobben | Method for producing a rotor blade of a wind energy plant |
| US20050186081A1 (en) * | 2004-02-24 | 2005-08-25 | Mohamed Mansour H. | Wind blade spar cap and method of making |
| DE102007036917A1 (en) * | 2007-08-06 | 2009-02-12 | Hafner, Edzard, Prof. Dr.-Ing. | Rotor blade for wind power plant i.e. floating wind power plant, has clamping member arranged on pillar such that effective cross section holds additional compressive strength to anticipate stress-dependent deformation due to wind load |
| DE102008007304A1 (en) * | 2008-02-02 | 2009-08-06 | Nordex Energy Gmbh | Rotor blade for wind turbines |
-
2008
- 2008-09-25 DE DE102008049016A patent/DE102008049016A1/en not_active Ceased
-
2009
- 2009-09-11 EP EP09741201.9A patent/EP2329139B1/en active Active
- 2009-09-11 CN CN200980137532.7A patent/CN102216607B/en active Active
- 2009-09-11 US US13/120,454 patent/US8888463B2/en active Active
- 2009-09-11 WO PCT/DE2009/001271 patent/WO2010034283A2/en active Application Filing
- 2009-09-11 DK DK09741201.9T patent/DK2329139T3/en active
- 2009-09-11 ES ES09741201.9T patent/ES2462755T3/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4137007A (en) * | 1975-12-27 | 1979-01-30 | Walter Schonball | Rotor blade structure |
| WO2003008800A1 (en) * | 2001-07-19 | 2003-01-30 | Neg Micon A/S | Wind turbine blade |
| DE20320714U1 (en) * | 2002-05-02 | 2005-01-13 | Repower Systems Ag | Rotor blade for wind power generator has shell with internal stiffening straps having glass fiber and carbon fiber reinforced sections to increase stiffness |
| JP2007255366A (en) * | 2006-03-24 | 2007-10-04 | Mitsubishi Heavy Ind Ltd | Windmill blade |
| CN101892946A (en) * | 2010-07-22 | 2010-11-24 | 北京可汗之风科技有限公司 | Root structural design of wind driven generator blade |
Also Published As
| Publication number | Publication date |
|---|---|
| US20110262280A1 (en) | 2011-10-27 |
| DK2329139T3 (en) | 2014-07-21 |
| WO2010034283A3 (en) | 2011-06-23 |
| DE102008049016A1 (en) | 2010-04-15 |
| EP2329139A2 (en) | 2011-06-08 |
| CN102216607A (en) | 2011-10-12 |
| EP2329139B1 (en) | 2014-04-16 |
| ES2462755T3 (en) | 2014-05-26 |
| US8888463B2 (en) | 2014-11-18 |
| WO2010034283A2 (en) | 2010-04-01 |
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